How do I use the formula editor?
If you need to add mathematical expressions in your question and aren't sure how, read this guide.
TestGorilla's formula editor uses LaTeX input. The good news is you don't need to know LaTeX to create beautiful mathematical expressions. We simplify the process for you!
In the question editor, click the formula icon in the rich text editing bar (highlighted in red in the picture below).
This opens the formula editor (as shown below):
Here you can enter your mathematical expression. For example, typing...
e=mc^2
... results in the following:
To simplify your formula editing, we've added a few commonly used mathematical expressions. Simply click on one to use it in your formula.
For other expressions, you must use LaTeX codes. The following table should cover most of your needs. It's a good idea to bookmark this page so you can refer back to it as needed.
| Description |
Command |
|
Output |
| plus or minus |
\pm
|
|
 |
| multiplication (times) |
\times
|
|
 |
| multiplication (dot) |
\cdot
|
|
 |
| division symbol |
\div
|
|
 |
| simple text |
\text{text}
|
|
 |
| infinity |
\infty
|
|
 |
| dots |
1,2,3,\ldots
|
|
 |
| dots |
1+2+3+\cdots
|
|
 |
| fraction |
\frac{a}{b}
|
|
 |
| square root |
\sqrt{x}
|
|
 |
| nth root |
\sqrt[n]{x}
|
|
 |
| exponentiation |
a^b
|
|
 |
| subscript |
a_b
|
|
 |
| absolute value |
|x|
|
|
 |
| natural log |
\ln(x)
|
|
 |
| logarithms |
\log_{a}b
|
|
 |
| exponential function |
e^x=\exp(x)
|
|
 |
| deg |
\deg(f)
|
|
 |
| degree |
\degree
|
|
 |
| circle plus |
\oplus
|
|
 |
| circle times |
\otimes
|
|
 |
| not equal |
\ne
|
|
 |
| less than or equal to |
\le
|
|
 |
| greater than or equal to |
\ge
|
|
 |
| approximately equal to |
\approx
|
|
 |
| vector (arrow) |
\vec{v}
|
|
 |
| derivative vector |
\dot{\vec{v}}
|
|
 |
| vector (bold) |
\mathbf{v}
|
|
 |
| unit vector (hat) |
\hat{k’}
|
|
 |
| norm |
||\vec{v}||
|
|
 |
| element of |
\in
|
|
 |
| subset of |
\subset
|
|
 |
| subset of |
\subseteq
|
|
 |
| contains |
\supset
|
|
 |
| contains |
\supseteq
|
|
 |
| union |
\cup
|
|
 |
| intersection |
\cap
|
|
 |
| big union |
\bigcup_{n=1}^{10}A_n
|
|
 |
| big intersection |
\bigcap_{n=1}^{10}A_n
|
|
 |
| empty set |
\emptyset
|
|
 |
| power set |
\wp{S}
|
|
 |
| minimum |
\min
|
|
 |
| maximum |
\max
|
|
 |
| closure |
\overline{A}
|
|
 |
| derivative |
\frac{df}{dx}
|
|
 |
| derivative |
\f'
|
|
 |
| partial derivative |
\frac{\partial f}{\partial x}
|
|
 |
| limits |
\lim_{x\to \infty}
|
|
 |
| summation |
\sum_{n=1}^{\infty}a_n
|
|
 |
| product |
\prod_{n=1}^{\infty}a_n
|
|
 |
| integral |
\int_{a}^{b}
|
|
 |
| double integral |
\iint
|
|
 |
| triple integral |
\iiint
|
|
 |
If you need more symbols, you can look them up in this pdf document (there are 14,283 of them in total). Please note that not all of those symbols are available in our editor. If you're missing something, please contact us here.
